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AIIMS 2010
Exam
AIIMS
Year
2010
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2010 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Assertion : PCl_5 is covalent in gaseous and liquid states but...

Assertion : PCl5\mathrm{PCl}_5 is covalent in gaseous and liquid states but ionic in solid state. Reason : PCl5\mathrm{PCl}_5 in solid state consists of tetrahedral PCl4+\mathrm{PCl}_4^{+}cation and octahedral PCl6−\mathrm{PCl}_6^{-} anion.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion

Step-by-step solution

PCl5\mathrm{PCl}_5 is trigonal bipyramidal containing sp3ds p^3 d hybridized P\mathrm{P} atom in liquid and gaseous states whereas in solid state it consists of tetrahedral PCl4+\mathrm{PCl}_4^{+}cation and octahedral PCl6−\mathrm{PCl}_6^{-}anion.
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